CVE-2026-39980High· 7.2▾ TwilightOpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.5, the safeEjs.ts file does not properly sanitize EJS templates. Users with the Manage customization capability can run arb…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.6 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 13.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.5%
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.5, the safeEjs.ts file does not properly sanitize EJS templates. Users with the Manage customization capability can run arbitrary JavaScript in the context of the OpenCTI platform process during notifier template execution. This vulnerability is fixed in 6.9.5.
pycti < 6.9.5Upgrade to a patched release:
pycti 6.9.5Connected by shared product, vendor, weakness, or advisory.
CVE-2025-61782Medium· 6.1OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.8.3, an open redi…
CVE-2024-37155Medium· 6.5OpenCTI May Bypass Introspection Restriction
CVE-2026-21887High· 7.7OpenCTI has Semi-Blind SSRF via Unvalidated External URL in Data Ingestion Feature